769414928569 has 45 divisors (see below), whose sum is σ = 933262361787. Its totient is φ = 632483644128.

The previous prime is 769414928567. The next prime is 769414928603. The reversal of 769414928569 is 965829414967.

It is a happy number.

The square root of 769414928569 is 877163.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 653774124969 + 115640803600 = 808563^2 + 340060^2 .

It is not a de Polignac number, because 769414928569 - 2¹ = 769414928567 is a prime.

It is a super-2 number, since 2×769414928569² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 769414928498 and 769414928507.

It is not an unprimeable number, because it can be changed into a prime (769414928567) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 5163858507 + ... + 5163858655.

Almost surely, 2^769414928569 is an apocalyptic number.

769414928569 is the 877163-rd square number.

769414928569 is the 438582-nd centered octagonal number.

It is an amenable number.

769414928569 is a deficient number, since it is larger than the sum of its proper divisors (163847433218).

769414928569 is an frugal number, since it uses more digits than its factorization.

769414928569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 185 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 70.

The spelling of 769414928569 in words is "seven hundred sixty-nine billion, four hundred fourteen million, nine hundred twenty-eight thousand, five hundred sixty-nine".